Descriptions of Male and Immature Stages of Cryptococcus ulmi Tang et Hao (Homoptera: Coccoidea: Eriococcidae) with Brief Notes on Its Biology
榆树隐毡蚧各龄若虫和雄成虫形态及其生物学记述(同翅目 :蚧总科 :毡蚧科)(英文)作者机构：北京林业大学生物学院北京100083
出 版 物：《Entomotaxonomia》 (昆虫分类学报（英文）)
年 卷 期：2000年第22卷第4期
页 面：251-256页
核心收录：
学科分类：0710[理学-生物学] 07[理学] 09[农学]
主 题：morphology immature stages adult male biology Cryptococcus ulmi
摘 要：In this paper, the crawler, second instar female and male, prepupa, pupa and adult male of Cryptococcus ulmi are described and illustrated for the first time; adult female is redescribed; a key to all stages is given and the biology is briefly repor ted.
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